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Tasya [4]
3 years ago
10

Find all complex numbers z such that z^4 = -4.

Mathematics
1 answer:
adelina 88 [10]3 years ago
7 0
26 and yeah just need points ignore this answer so sorry
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PLS HELP What is the quotient?
ryzh [129]

Answer:

Step-by-step explanation:

2\frac{1}{5}dividedby\frac{-1}{10}=2\frac{1}{5}*\frac{-10}{1}\\\\=\frac{11}{5}*\frac{-10}{1}\\\\=11*-2=-22\\

Keep the first fraction, change division to multiplication and find the reciprocal(multiplicative inverse) of the second fraction

\frac{11}{50}dividedby\frac{11}{50}=\frac{11}{50}*\frac{50}{11}\\\\ =1

3 0
3 years ago
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Which of the following is an x intercept of the function f(x)=x^2-81?
Doss [256]
<span>x intercept when f(x) = 0
so
</span><span>x^2-81 = 0
x^2 = 81
x = + 9 and x = -9

Answer
</span><span>C -9</span>
4 0
3 years ago
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trevor needs to let his puppy outside every quarter (1 fourth) hour to potty train him. draw and label a number line from 0 hour
Nastasia [14]
Make a number line and make it into four parts that shows that <span>needs to let his puppy outside every 25 min.</span>
7 0
3 years ago
Which of the following are vertical asymptotes of the function y = 3cot(1/2x) - 4?
emmasim [6.3K]
A vertical asymptote is a line that the graph of the function does not cross.
If: \lim_{x \to a} 3 cot (1/2 x)-4 =  +/- ∞
then the line x = a is a vertical asymptote.
For x = 0:
f ( 0 ) = 3 * cot 0 - 4 = ∞
For x = +/- 2 π :
f ( 2 π ) =  3 * cot π - 4 = - ∞
Answer:
A ) x = 0  and C ) x = +/- 2π
5 0
3 years ago
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Erode is 4/7 of a mile long a crew needs to repave 3/7 of it how long is the section that needs to be repaved in simplest form
Citrus2011 [14]
12/49

4*3=12
7*7=49
12/49 miles long is being repaved.

This can be tested by taking a mile (in feet for example) and multiplying 5280 ft by 4/7 then by 3/7 to get the same answer as taking 5280 ft times 12/49.
8 0
3 years ago
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